Cavitation Technology Brewing it Up – How Hydrodynamic Cavitation Changes the F&B Industry

Editor: Dominik Stephan

SPX Cavitation Technology for beverage processing – A report on how the latest hydrodynamic cavitation technology enhances resource efficiency in processing and helps in maintaining the quality of beverages.

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SPX’s Cavitation technology offers the real potential to reduce operational costs and provide higher end-product quality.
SPX’s Cavitation technology offers the real potential to reduce operational costs and provide higher end-product quality.
(Picture: SPX Flow Technologies)

The APV Cavitator ensures highly efficient gas dispersion, microscopic mixing, dispersion, emulsification as well as effective hydration and functionalization and scale free heating of heat sensible products. The rising global demand for high value beverages is being driven by many factors including a growing young population and increased spending power in emerging markets.

The growth of the nutritional beverage market is further driven by the health and wellness trends with increasing consumer demands for products that are natural, functional, healthy, tasty and convenient.

Environmental pressures combined with a highly competitive market place, calling for more diverse and premium products, requires new and innovative processing technologies.

Proven Technology for Beverage and Nutritional Drinks

SPX is a leading innovative component supplier and its technology is used across various beverage categories from beer and other alcoholic drinks to juice, soft drinks, flavored water, RTD tea and particulate drinks.

In addition, SPX comprises full line processing systems and solutions to meet the growing demands of the nutritional beverage market from non dairy soy, almond, and oat milk to dairy sports drinks with high protein content to a wide range of flavored drinking milk and fermented milk drink categories.

Our food technologists are constantly focusing on new ways to support customers with modern challenges. SPX’s equipment portfolio includes a wide range of flow components, dairy and nutritional beverage process line equipment from dairy based raw materials intake, ingredients mixing and blending, to thermal processing.

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These may also include partnerships for filling lines. Supported by leading innovation centres, SPX has proven its ability in helping customers develop and produce a wide range of high quality and safe nutritional beverages.

Hydrodynamic Cavitation Technology

Hydrodynamic cavitation technology uses a rotor with precisely machined cavities spinning in a liquid chamber that generates controlled cavitation. The process generates and collapses bubbles due to the decrease and then increase in the pressure produced.

As the bubbles collapse, a powerful energy wave (shockwave) is released into the surrounding liquid. This cavitation shockwave creates an efficient microscopic mixing effect which along with the rotor or liquid friction generates controllable, scale-free heating.

The APV Cavitator has multiple applications including gas dispersion; citrus oil dispersion and homogenization, gentle mixing of fruit pulps, powder ingredients hydration and functionalization and scale free heating of protein drinks. The applications are represented in Table 1 and some of these applications will be further discussed here.

Ta b l e 1 : A p p l i c a t i o n s a n d b e n e f i t s o f A P V C a v i t a t o r t e c h n o l o g y
Ta b l e 1 : A p p l i c a t i o n s a n d b e n e f i t s o f A P V C a v i t a t o r t e c h n o l o g y
(Picture: SPX Flow Technologies)

Unique Gas Dispersion Enhances Filling Efficiency

Gas dispersion is a unique and proven feature of the Cavitator. Thanks to its efficient gas dispersion, the ideal condition for micro-bubbles are generated in the carbonation (CO2) or the nitrogenation (N2) processes in the final beer. O2 is essential for yeast and a good dispersion of the O2 promotes the fermentation process. The CO2 and N2 enhance flavor, mouth-feel and shelf life in soft drinks, beer and cider, etc., when well dispersed as micro bubbles.

The APV Cavitator has proven high efficiency in the carbonation of beer prior to filling. The Cavitator produces fine micro bubbles when the solution is supersaturated; this significantly improves the bottle line efficiency.

The Cavitator reduces the CO2 bubble size leading to a higher gas surface area creating intensive gas or liquid contact, and thereby slowing the bubble rise velocity leading to significant benefits in the filling process of beer and beverages.

  • Less immediate over foaming during the filling process
  • Increased performance and speed of the bottle filler
  • Lower product losses, cooling costs and less labeling problems
  • Easy cleaning of the bottle filler and filled bottles

Enhanced quality, firmness and stability of coffee foams are other successful applications. In addition, nitrogenation enhances the spray drying performance of the coffee extract.

The APV Cavitator has multiple applications including gas dispersion; citrus oil dispersion and homogenization, gentle mixing of fruit pulps, etc.
The APV Cavitator has multiple applications including gas dispersion; citrus oil dispersion and homogenization, gentle mixing of fruit pulps, etc.
(Picture: SPX Flow Technologies)

High Efficient Mixing, Dispersion and Ingredients

The superior mixing, dispersion / emulsification, hydration and scale free heating of the Cavitator has proven to deliver significant benefits in both processing and quality of the end product across beverage categories.

  • An efficient but gentle mixing of citrus fruit pulps ensures that the fibres / particulates remain substantially intact and secure excellent product stability.
  • Fast and efficient hydration of gums, protein powders and tea ingredients enhance yields and resource efficiency in processing.
  • Unique dispersion and emulsification of citrus oils and essences ensure high quality and stable end product beverages.
  • Micro particulation of WPC provides functional ingredients for protein enriched low fat nutritional beverages making them taste like the full fat versions.
  • Scale free heating of high protein nutritional drinks enhance the running time of the thermal processing system and save operational costs.

SPX continues to research and develop solutions that deliver clear customer benefits, thus enhancing resource efficiency and end product quality and differentiation. It has a detailed understanding of the beverage and nutritional drinks market, food safety and hygiene requirements.

SPX comprises full line processing systems and solutions to meet the growing demands of the nutritional beverage market.
SPX comprises full line processing systems and solutions to meet the growing demands of the nutritional beverage market.
(Picture: SPX Flow Technologies)

Controlled hydrodynamic cavitation offers many benefits and versatility in the beverage market. It provides excellent microscopic mixing and dispersion with efficient hydration, emulsification and functionalization of WPC ingredients, as well as scale free heating. Overall, this reliable low maintenance technology offers the real potential to reduce operational costs and provide higher end product quality.

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